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Cushion|Lab Grown|IGI

1.80ct J VS1 Cushion Lab Grown Diamond

ID • J/VS1 • IGI LG436045211

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG436045211

Diamond specifications and retailer prices

From $990 USD
As of October 30, 2026
Save $3,212 USD (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,563 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG436045211 or 436045211. Listed at 7 retailers as of October 29, 2026, with a 324% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
J
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045211
Dimensions7.11 × 7.05 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.11 mm7.05 mm1.80 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045211
Side View
Table 58.0%Crown 34.9°Girdle: STK-VTKPavilion 38.9°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,563 USD|Low: $990 USD|High: $6,615 USD|Avg: $3,598 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$990 USD
Retailer 6$2,206 USD
Retailer 4$2,286 USD
Retailer 7$2,455 USD
Retailer 8$2,924 USD
Retailer 5$3,577 USD
Retailer 3$4,202 USD
Retailer 9$6,544 USD
MOH London$6,563 USD

19 data points across 9 retailers

7 retailers$990 USD to $4,202 USD

A
Cheapest Retailer
-
$990 USD
B
Retailer 2
-
$2,206 USD
View
Final sale: no returns
Retailer 3
-
$2,286 USD
View
Price last confirmed 20 days ago
B
Retailer 4
-
$2,455 USD
View
B
Retailer 5
-
$3,577 USD
View
B
Retailer 6
-
$4,202 USD
ZAR 67,882 ZAR
View
Most Expensive
MOH London
LG436045211 · Oct 29
$6,563 USD
£5,168 GBP
View
Price under review
6 more retailers have this diamond
Prices start from $990 USDSave up to $3,212 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.80ct Cushion
$990 USD